rust/src/test/ui/run-pass/unique/unique-ffi-symbols.rs

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2016-03-06 06:17:53 -06:00
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// We used to have a __rust_abi shim that resulted in duplicated symbols
// whenever the item path wasn't enough to disambiguate between them.
fn main() {
let a = {
extern fn good() -> i32 { return 0; }
good as extern fn() -> i32
};
let b = {
extern fn good() -> i32 { return 5; }
good as extern fn() -> i32
};
assert!(a != b);
assert_eq!((a(), b()), (0, 5));
}